Lets say you are not on university property and simply drug USE won't get you in trouble (and its not illegal to be high in public). 1. You smoked a joint outside and a cop detains you. You admit you smoked some MJ and a cop searches you finds nothings. You still admit. What are possible consequences? Can they arrest you for destruction of evidence or some other semi-possession charge? 2. How much MJ is needed to prosecute you? I know a seed can get you arrested, but what about residue on your hands? 3. Is a plastic bag with MJ residue (not visible) considered paraphernalia? 4. If you get caught in the process of BUYING MJ (not selling) then whats the charge? Possession or distribution? 5. What if you get caught buying MJ from a cop (undercover cop)?